usb loader gx 1.5 rev 700 black screen problem when reloading

hey guys i have a slight problem, all the games i have work no err2 or anything the problem that i am having is that when i load a game and play the exit out and try to load another i just get a black screen but here is the funny thing if i reset my wii i can then reload up usb loader gx and the game will work any idea's heres what i have :
Wii lu64
system menu 4.1 updated
Cios rev 13 and rev 14 ( both do the same thing)
ciso 60 installed
homebrew installed
130 games on a westren digital
200 vc games on a 8gig sd ( by it self not on the homebrew/cios sd card)

i am having the same problem on a lu57( which is identical to the lu64 in updates and cios) wii as well
i quick response would be great thank you all so much

more information as wee

also i forgot to add silly me, if i press the home button and it reset then go back into usb loader then i can load another game but if i click on the wii menu and go stright back to the menu and then load usb loader gx then i get the black screen